linux-kernel - Re: [PATCH v6 0/4] iommu: Add page_ext for IOMMU_DEBUG

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Message-ID: <hf3gfmaq673tvz6lc7mgip3m4y4o62b3nyqlofas252qr5776y@6oekozsrwea3>
Date: Sat, 10 Jan 2026 10:53:00 +0100
From: Jörg Rödel <joro@...tes.org>
To: Mostafa Saleh <smostafa@...gle.com>
Cc: linux-mm@...ck.org, iommu@...ts.linux.dev, 
	linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org, corbet@....net, will@...nel.org, 
	robin.murphy@....com, akpm@...ux-foundation.org, vbabka@...e.cz, surenb@...gle.com, 
	mhocko@...e.com, jackmanb@...gle.com, hannes@...xchg.org, ziy@...dia.com, 
	david@...hat.com, lorenzo.stoakes@...cle.com, Liam.Howlett@...cle.com, 
	rppt@...nel.org, xiaqinxin@...wei.com, baolu.lu@...ux.intel.com, 
	rdunlap@...radead.org
Subject: Re: [PATCH v6 0/4] iommu: Add page_ext for IOMMU_DEBUG_PAGEALLOC

On Fri, Jan 09, 2026 at 05:18:01PM +0000, Mostafa Saleh wrote:
> Mostafa Saleh (4):
>   iommu: Add page_ext for IOMMU_DEBUG_PAGEALLOC
>   iommu: Add calls for IOMMU_DEBUG_PAGEALLOC
>   iommu: debug-pagealloc: Track IOMMU pages
>   iommu: debug-pagealloc: Check mapped/unmapped kernel memory
> 
>  .../admin-guide/kernel-parameters.txt         |   9 +
>  drivers/iommu/Kconfig                         |  19 ++
>  drivers/iommu/Makefile                        |   1 +
>  drivers/iommu/iommu-debug-pagealloc.c         | 167 ++++++++++++++++++
>  drivers/iommu/iommu-priv.h                    |  58 ++++++
>  drivers/iommu/iommu.c                         |  11 +-
>  include/linux/iommu-debug-pagealloc.h         |  32 ++++
>  include/linux/mm.h                            |   5 +
>  mm/page_ext.c                                 |   4 +
>  9 files changed, 304 insertions(+), 2 deletions(-)
>  create mode 100644 drivers/iommu/iommu-debug-pagealloc.c
>  create mode 100644 include/linux/iommu-debug-pagealloc.h

Applied, thanks.